Flushing valve



NOV. 17, 1936. T |=h PAYNE 2,061,084

FLUSHING VALVE Filed Aug. l5, 1951 4 Sheets-.Sheet 1 'In'lllllll T. F.PAYNE Nov. 17, 1936.

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Filed Aug. l5, 1951 4 Sheets-Sheet 3 .III

A INVENTOR T. F. PAYNE FLUSHING VALVE Nov; 17, 1936.

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atented Nov. 17, 1936 iso STATES QFFICE 6 Claims.

This invention is for a flushing valve for use on water closets andrelates to that type of valve which is coupled directly to the watersupply line without requiring the use of the reservoir or tank.

The invention ls particularly applicable for use in connection withwater closets having a rim discharge and a jet discharge and when usedwith a bowl of this type it is constructed to deliver water first to therim, then to the jet, and then to the rim. In this respect itconstitutes an improvement on the invention covered in my prior UnitedStates Patent No. 1,660,352, dated February 28, 1928.

In valves of thistype there is usually a movable element attached to anoperating head which is operated in the opening direction by a push rod,as disclosed in my said patent, or other manual effort, or by uidpressure, while a spring or weight is generally relied upon to assist inoperating the valve in the reverse direction, to a closed position.According to the present invention, the valve is normally held closed byuid pressure. The release of the uid pressure on one side of theoperating head causes the valve rst to be opened by the pressure of theincoming water and then to be closed by the water pressure from the samesource after the release Valve has closed. It thereby eliminates anyrequirements for springs or push rods.

It is a known fact that when a valve is located on the end of a valveline, and the valve has a waterway through it as large or nearly aslarge as the Water line, that as soon as the valve is opened, the waterpressure near the end of the line is practically all lost, and whenwater operated flushing valves are placed on the ends of water lineshaving low pressure, when the valve is operated 'there is not enoughwater pressure in the valve to open it fully, and often when the valveis opened full, there is not enough water pressure to close it. Due tothe alternating function of this invention the movable elementnecessarily must have a long travel both in its opening and closingmovements. The waterways through this invention are not as large as thewaterways of the source of supply, thus at all times, no matter how longa travel the movable element may have, the waterways of this inventionare alwaysof a smaller area than the source of supply, or at least soproportioned with respect thereto so as to insure conserving enoughwater pressure on the movable element to fully o-pen and close the valveon reasonably low water pressure. It thereby eliminates any requirementfor push rods, springs, or weights to assist in the operation of themovable elements.

A further object of my invention is to provide means, when a vacuumoccurs in the source of water supply and the water closet is full ofwater, that will prevent the said vacuum from opening the valve anddrawing the water from the closet through the valve and into thewatersupply pipe.

Another object of this invention is to provide a movable element that iscomposed of all the moving parts (except the pressure release valve) ofthe valve combined into one unit, so that the said unit may be easilyremoved from the valve body if it becomes necessary to repair or replaceany of its parts.

The invention further contemplates a novel type of mounting forconnecting the valve to the bowl by means of which the connection may beeasily and securely made and the distribution of the water to the jetand the rim provided for.

The invention may be readily understood by reference to the accompanyingdrawings, in which Figure 1 represents a longitudinal vertical sectionthrough a valve assembly constructed in 2o accordance with my invention,the valve bein shown in the normal closed position;

Figure 2 is a view of the movable parts showing the distributing valvein the position which it initially assumes in the rst part of itsmovement to open position;

Figure 3 shows the position of the parts with the valve fully opened;

Figure 4 is a view similar to Figure 2 showing the parts just before theremoval thereof to the normal closed position;

Figure 5 is a detail sectional view on a larger scale showing theconnection of the valve to the bowl;

Figure 6 is a detail section through one of the connector members;

Figure 7 is a transverse section in the plane of line VII- VII of Figure6:

Figure 8 is a fragmentary sectional view in the plane of line VIII- VIIIof Figure 6;

Figure 9 is a side elevation, partly broken away, showing a modificationof the arrangement of Figure 1 wherein a diaphragm is used in place of aplunger;

Figure l0 is a view similar to Figure 9 of a modification of the valvewhen it is constructed for use with a closet bowl in which no specialprovision is made for alternating a discharge between the rim and jet;

Figure 11 is a detail view of the plug and wiper assembly on theoperating head; and

Figure l2 is a perspective view of the wiper element itself. f

Referring to the valve construction as shown in Figure l, 2 designates avalve body having a water inlet connection 3, this connection beingthreaded for connection with a standard pipe thread. In the upper partof the valve body 2 is a pressure chamber 4, this chamber being closedby a removable cap 5 which screws into the top 60 of the valve body, agasket being interposed between the two to provide a tight seal. Belowthe pressure chamber 4 is a cylinder or sleeve portion 6 in which is thevertically reciprocable valve member 1. The valve member 1 comprises ahollow cylindrical body having a central vertical partition 8 dividingthe inside of the valve into two chambers-9 and I8. In the upper walloi.' the chamber 9 is a substantially semi-circular slot II and near thelower end of the chamber 9 I8 is open at its lower end, as indicated atI4, to

provide a discharge, and the area of the discharge I4 is considerablylarger than the area of the slot I3 in order that no back pressure willbe built up when water is discharging through the slot I3;

On top of the cylindrical valve body 1 is an operating head I 5. Thehead I5 carries a washer I9 which closes the upper end of the valve body1 andv which is adapted to seat on the annular seat I1 at the top of thecylindrical valve chamber 6.

Passing through the operating head I5 is a transverse passage I 8communicating with a vertical passage I9 in which is a ball check valve28, the ball serving to permit the flow of fluid from the passage I8upwardly, but serving to prevent the ow of uid in the reverse direction.Carried on the operating head I5 is a removable dome 2|. In Figure 1 Ihave shown th is dome as having a flange 22 for holding a cup leather 23in place, this cup leather bearing against the inner walls of thecylindrical pressure chamber 4. vThe dom'e 2I carries a removable plug24 having a central passage 25 therein. In the central passage 25 is anon-circular pin 26 and on the lower end of the pin 26 is an integraldisc or flange 21 adapted to rest on the notched ange 28 at the bottomof the plug 24. A compression spring 29 within the dome serves to urgethe pin 26 upwardly, holding the ange 21 against the notched ange 28.

By reason of the fact that the ilange 21 seats on a notched flange 28,which arrangement is more clearly shown in Figures 1l and l2, com'munication may always be established from the passage I8 through thepassage I9 around the ball 29 into the dome 2I under the ilange 21 andup around the non-circular pin 25 into the pressure chamber.

In the upper part of the pressure chamber 4 is a fluid outlet port 30communicating with a bypass 3|, this by-pass being formed in a lateralextension 32 on the body of the valve casing. This lateral extensionsupports a control valve mechanism of a familiar and well-known type.-This control valve includes a seat 33 against which a reciprocable valvemember 34 is normally seated. 'I'he valve member 34 is carried on anoperating rod 35 passing through a packing gland and normally urged tothe closed position by means of a compression spring 35 acting against adisc 31 carried on the outer end of the rod 35. At 38 is a universallytiltable lever having a portion 39 adapted to contact with the disc 31.When the is pushedk inwardly to unseat the valve 34 from its seat 33.The port which is closed by the valve 34 leads into a by-pass 40 and 4I.

At the-lower end of the valve cylinder 8 is a threaded extension 42 intowhich is screwed an inner discharge pipe 43'. On the lower end of thevalve body is asimilar threaded extension 44 into which is screwed asecond pipe 45, the sec.- ond pipe 45 being concentric about the pipe43.

In the valve body is an annular passageway or channel 46 and thiscommunicates through vertical passages 41 with the lower end of thevalve body so that water owing into the annular v channel 45 maydischarge into the outer pipe 45. The port I2 and passage'46, whilelarger than port II', are relatively narrow so that the valve movesrather quickly in moving the ports I2 and 46 out of register, thusassuring a full vertical movement of the valve. The by-pass 4I from thecontrol valve opens into one of the vertical passages 41. Y

0n the inside of the top of the capv 5 is a threaded socket 50 intowhich is screwed a plug 5I having a vertical extension 52 thereon, thetop of this extension having a slot 53 by means of which a screw drivermay be engaged therein. By turning the stem 52, the plug 5I may bescrewed up and down in the socket 50. 'I'he extension 52 is sealed by agland 54. The head of the screw 53 in the gland is covered by aremovable cap 55.

Leading from the water connection'3 is a port or passage 55communicating with an annular chamber 51 under the operating head belowthe cu 23.

''he operation of the valve may nowbe described. It may be assumed thatthe chamber 4 sure of fluid in the pressure chamber 4 is greater thanthe area of the operating head subjected to -upward pressure becausethere is no upward pressure on that part of the underside of thepistonwhich is covered by the cylindrical valve 1. 'I'he water pressure being,over the larger area of the top of the operating head keeps the valveclosed. When it is closed the washer I6 is tightly seated on the annularseat I1 and no waterl can pass this seat. l

When the handle 38 is moved in any direction to open valve 34, thepressure in the chamber 4 is released, the water draining from thechamber 4 through the port 39, the passage 3|, and through the valve 34,the passages 48, 4I and 41 into the pipe 45. When the water pressureexerted on the operating head in the chamber 4 is released, the waterpressure in the annular chamber 51 forces the operating head upwardly.This upward movement quickly raises -the slot II above seat I1 andsome'of the incoming water will then flow through the slot II into thevalve chamber 9 and out of the slot I2. At this time the slot I2 will bein register with the annular channel 46, and water owing out of the slotI2 will be discharged into the pipe 45 which leads to the jet of thecloset bowl. The slot II and the slot I3 each have an area which is lessthan the area of the port 56 through which the incoming water from theconnector 3 enters the valve. By reason of this fact the water will notflow through the passage II as fast as it can be supplied, thedifferential pressure resulting from the fact that the water cannotescape as fast as it is supplied, causes the operating head to continueto move up until the port I2 has moved out of register with the annulargroove 46. The upward travel of the operating head is continued furtheruntil the slot I3 is above the annular seat I1 and reaches the positionillustrated in Figure 3, at which time water will ilow through 'the slotI3 downthe chamber I0 and be discharged into the inner pipe 43, fromwhence it flows to the rim of the bowl.

The travel of the operating head and the cylindrical valve member 1 fromtheir position shown in Figure 1 to their position shown in Figure 3must necessarily be fast. This is necessary for the reason that if theslot I2 does not rapidly pass the annular channel 46, some of the waterpressure exerted on the under side of the operating head will be lost,so that the valve will not open fully to the extent that the slot I3will rise above the annular seat I1. To prevent the aforesaid loss ofpressure, it is necessary that the slots I I and I3 be of suicientlysmaller area than the source of supply to conserve enough pressure tooperate the valve and still be of sucient area to pass enough water toflush this type of water closet.

When the operating head and the reciprocable valve member 1 are in theposition illustrated in Figure 3, the slot I2 is out of register withthe annular chamber 46 and the slot II is in register with the annularchamber 51, as is also the slot I3.

After the operating head and cylindrical valve member 1 have reached theposition shown in Figure 3, the operator will have released the handle,and the spring 36 will cause the valve 34 to close, thus stopping theescape of water from the pressure chamber 4. Some of the water will thenflow through the passage I8, up the passage i9, past the ball check 2D,under the ange 21 on the pin 26 and around the pin 26 into the pressurechamber rl. Since the water cannot escape from chamber 4, pressure willbuild up in this chamber. This water pressure will be exerted on the topof the operating head, and as the top side of the operating head is ofgreater area than its underside, a greater pressure will be exerted onthe top side, which will force the operating head downward until thewasher I6 is seated on the annular seat I1.

When the operating head and the cylindrical valve member start on theirdownward travel, thev slots II and I3 are in register with the annularchamber 51. The water passes through both slots II and I3, and entersthe chambers 9 and Ill, and as the slots I2 and I2a are out of registerwith the annular channel 46 and the enlarged part of the sleeve portionB, the water flows through slot I3, through chamber IQ into the pipe 43which conducts it to the rim of the closet. As the operating head andthe cylindrical valve member continue their downward travel, the slot I3is covered by the top end of sleeve 6 at ,the annular seat I1, thusstopping the ow of water through the slot I3. At this time the slot I2comes into register with the Y annular chamber 46, as shown in Figure 2.The

annular channel 46, then through the passage 41 into the pipe 45, whichconducts it to the jet passageof the closet bowl.

As the operating he'ad further continues its downward travel, the slotI2 moves out of register with the channel 46, the water stops iiowingthrough slot I2, and the slot I2a moves into register with the enlargedportion of the sleeve B as shown in Figure 4. When the cylindrical Valvemember is in this position, the water passes through slot II to chamber9 and out through slot I2a into the enlarged portion of the sleeve B andis then conducted by the pipe 43 to the rim of the closet to rell thebowl. This downward movement of operating head I5 and valve member 1continues until the washer I6 reaches its annular seat I1, after whichno water will pass through the valve. The pressure continues to be builtup in the chamber 4 until it equals the inlet pressure.

In order to assure lling of the bowl, the chamber 9 has a port I2a nearthe bottom thereof which normally opens into the enlarged lower end ofthe valve sleeve 6 and ls so positioned that just as the valve opens andagain just before the port II moves below the annular seat I1, willpermit the ow of water through the chamber 9 into the jet discharge pipe43. This, incidentally, allows water to completely drain out of thechamber 9 upon closing of the valve.

The by-pass from the passage I8 up through the dome into the chamber 4must be a restricted passage in order that pressure will not build uptoo quickly in the chamber 4 and cause the valve to operate too rapidly.A small orifice would be likely to become clogged with small particles,and to prevent, this I use the rod 26, which can be of any desiredshape. I have here shown it as non-circular. When the valve moves up,the top of the rod 26 hits the plug 5| and is held stationary relativeto the upwardly moving parts and against the pressure of the spring 2.The relative reciprocation between the stem 26 and the member 24 servesto dislodge any small particles which might enter this passageway. Ofcourse when the valve begins to close, the spring 29 urges the member 26back to its normal position, giving a, reciprocating or wiping action inthe reverse direction. Thus with every operation of the valve the member26 wipes up and down in the passage 25, tending to break up and dislodgeany foreign particles that might otherwise tend to clog this restrictedpassageway.

The Sanitary Code established by the Department of Commerce requiresthat a flushing valve connected directly with a water supply linev shallbe so constructed that in the event of the water supply being shut oi inthe basement so as to create a vacuum in the water supply line betweenthe basement and the valve. there can be no suction of water from thecloset bowl back into the water supply line. 'Ihis is an extremelyunlikely condition, but the check valve provided by the ball 20 guardsagainst this. If there were a suction or vacuum on connection 3, thissuction would be conducted to the annular passage 51 and on the underside of the operating head, thus pulling the operating head hard ontoits seat I1, and holding the valve closed. But if there was no automaticcheck in the passage I9, this suction, or vacuum would be conducted tothe top side of the op'erating head as well as the under side, and asthe top side would have the greater area exposed to the suction, thesuction would raise the operating head from its seat I1, and the suctionwould then draw the water from the closet through the pipes 43 and 45,through chambers 9, I0, the slots l2 and I3, the annular passage 61, theport 56 and through the connection 3 into the water supply line. Theball check prevents this by preventing the suction or vacuum passingthrough passage I9, thus holding the suction on the underside of theoperating head only. If there were a suction on the connection 3 and thevalve 34 were opened, thus establishing suction up through the pipe 45,the by-pass 4|, 40, into the pressure chamber 4, the reverse pressurewould cause the ball 20 to seat and thus prevent any fluid fromtraveling back into the water supply line by means of this route.

In the operation of the valve the plug 24 in the top of the dome 2|comes into contact with the vertically adjustable plug 5| in the top ofthe cap 5. Byadjusting the plug 5| upwardly the limit oi upward movementof the valve is increased, and by adjusting the plug downwardly thelimit of movement of the valve is decreased. By means of this theilushing period can be regulated within the necessary limits.

The closet bowl having the two passageways to the rim and the jet isconventional and the present invention contemplates no modication of thecloset bowl. I have therefore shown only the portion of the closet bowlin which the valve is mounted.

In Figure 5 I have shown the connection between the valve and the closetbowl. The closet bowl is designated 60 and it has at the back of it avertically opening pocket 6|. Leading olf from this pocket is a passage62 that goes to the rim of the bowl, while the main portion of thepocket 6| communicates with the jet through the channel 63. Asordinarily constructed, the top of the pocket 6| has a slightlyoverhanging flange 64.

According to my invention the lower end of the pipe 43 projects belowthe lower end of the outer pipe 45. At the lower end of the pipe 43 isan elbow 65 having a rubber gasket 66 therein through which the lowerend of the pipe" 43 passes, there being a stop at 61 to limit thedistance in which the pipe 43 may be entered in the elbow. The other endof the elbow carries a rubber plug or gasket 68 which fits into thepassageway 62.

Surrounding the upper part of the elbow and the lower end of the pipe 43is a connector 69 having a lower tapered portion 10, an intermediatethreaded portion 1| and an upper threaded portion 12, the three portionsbeing of respectively smaller diameters.

On the intermediate threaded portion 1| is a flanged nut 13 for drawingthe ared portion 10 upwardly into clamping engagement with the flangedportion 64 of the bowl, a. rubber gasket 14 being interposed between theflared portion of the sleeve 69 and the nut. On the inside of the sleeveportion 10 are a plurality of laterally projecting lugs 15 for holdingthe upper end of the elbow in concencric spaced relation to the insideof the member 69, water passages of course being formed between theselugs. The outer pipe 45 ts into the upper portion 12 of the member I 69,there being a lug 16 to limit the extent to which the end of the pipe 45can project into the member 69. Screwed onto the outside .of the portion12 is a nut 11 for confining a packing 18 around the lower end of thepipe 45.

This connection can be made very quickly, and where an alternating valveis provided, serves as an eifective means for distributing the waterinto the two channels. It will be understood that two channels are nowcommonly provided but alternating' valves have never been used to ushwater closets except in a few experimental cases. I have shown anenclosing dome member at 19. This merely rests on the bowl and isconfined to some extent by the nut 11.

In the arrangement shown in Figure 9 the construction throughout issubstantially the same as the construction shown in Figure' 1, with theexception that the operating head, instead of having a cup leather 23operating within a cylindrical pressure chamber 4, is carried on aflexible leather or similar diaphragm 80, this diaphragm being clampedto the operating head in the same way that the cup leather is clamped.'Ihe valve casing, however, is made of a larger diameter and theperiphery of the diaphragm is clamped between the seat 8| formed in thevalve casing itself, and a flange 82 extending down from the cap 5a.'I'he diaphragm 80 of course permits of pressure responsive movement ofthe operating head in the same way as in the arrangement previouslydescribed. Like reference numerals have otherwise been used in Figuresland 9 to designate the corresponding parts.

The arrangement shown in Figure 10 is provided where it is desired tohave a pressure operated valve without the alternating feature. Withoutthe alternating feature of course there is only one discharge pipe andall of the Water discharges into this pipe so that the valve structureis much more simple and the plurality of ports as heretofore describedis not necessary. In this gure.

the valve casing 90 is provided with an inlet connection 9|. It has acap 92 which is provided with the various features hereinbeforedescribed. The control valve, similar to the valve 34, is not shown butis mounted on an extension 95 on the housing. The pressure chamber isdesignated 96; 91 is the outlet port from the pressure chamber and 98 isthe by-pass through which Water bypassed from the pressure chamber isreturned to the discharge pipe 99 attached to the lower end of the valvecasing. Within the valve casing is a cylindrical chamber or sleeve |00in which the vertically reciprocating valve |0| has a sliding t. 'I'hevertically reciprocating valve is provided with two annular inlet ports|02 and |03; |02 is the main port and |03 is an auxiliary port ofsmaller area than the port |02, and both ports have a combined areawhichis less than the area of the passageway |04 from the inlet connectionportion 9| to the interior of the valve casing. The sliding valve |0| iscarried on an operating head |05, the construction of which is similarto the operating head shown in Figure 1, or the diaphragm arrangement ofFigure 9 may be used. The by-pass into the pressure chamber is the sameas that previously described. The operating head carries a Washer |06adapted to seat on the annular seat |01 at the top of the sleeve |00.

In operation, the cracking of the control valve allows fluid to escapefrom the pressure chamber 96, causing the operating head |05 to move up.The port |03 is first uncovered and then the port 02, and the flow ofwater through these ports goes into the discharge pipe 99. As the valvecloses, the main port |02 is I'lrst shut off, leaving a relativelyrestricted flow of water pass through the auxiliary port |03 for thepurpose of filling up the closet bowl after theushing has beencompleted. It is by reason of the fact that the area of the ports |02and |03 is less than the area oi' the passage IM that the operation ofthe valve is secured. As previously pointed out, this is important inorder that there will be a diierence of pressure to operate the valve inboth directions.

The advantages of my invention arise from the provision of a valve whichis practical to construct, which will be operated both in opening and inclosing by the pressure of the incoming water, and the valve does notrequire excessively large piping in order to supply it, as it is merelynecessary that the water supply pipe shall have a carrying capacityequal to or greater than the capacity of the port 56 or |04, i. e., thatis greater than the capacity of any discharge ports that are open at anyone time, whereby a differential in pressure will always be maintained.

A further advantage resides in the adaptation of the invention to analternating or distributing system. The arrangement is more simple tomanufacture and is more satisfactory than the arrangement shown in mysaid Patent No. 1,660,-

352. Various other objects and advantages are obtained by the invention,as will be apparent to those skilled in the art. 'I'he mounting by whichthe valve is attached to the bowl is also highly advantageous. i

While I have shown and described a preferred embodiment of my invention,it will be understood that various -modications and changes may be madein the construction shown within the contemplation oi my invention andunder the scope of the following claims.

I claim:

1. A valve of the class described comprising a casing having a waterinlet connection and having two water outlet connections, a valve sleevein said casing having a slide valve therein, a water passage in thecasing around the upper part of the sleeve, upper and lower ports in theslide valve adapted to be moved successively into the water intakepassage at the top of the sleeve upon movement of the slide valveupwardly. a channel in said sleeve communicating with one4 of saidoutlet passages, means for establishing communication between the upperport of the slide valve and the channelwhen the upper port rstcommunicates with the water inlet passage and for closing communicationbetween the upper port and the channel when the lower intake port of theslide valve communicates with the water inlet passage, said valveproviding a passageway tothe second outlet passage from the lower port,and a pressure responsive head lfor operating the slide valve.

2. A slide valve member -for an alternating valve comprising acylindrical body having a vertical partition dividing the interior ofthe body into two chambers, one of said chambers being closed at thebottom and having an inlet port therethrough in the side wall of thevalve member adjacent the upper end thereof and having an outlet porttherefrom positioned below the intake port and oi greater area than theintake port, the bottom of the second chamber being open, and an intakeport into the second chamber of less area vthan the outlet passageprovided by the open end of the chamber. the intake port of the secondchamber being located in a plane intermediate the intake and outletports of the first chamber.

3. A valve of the class described comprising a casing having one inletand two outlets and baving a. sleeve portion therein, said sleeveportion being of larger diameter at its lower end than at its upper end,a pressure responsive operating head in the valve casing above saidsleeve portion, and a sleeve valve member carried by the operating headand received in said sleeve, said valve member'being movable with thehead from a lower normally closed position to an upperA position, thelowermost end of said sleeve valve member opening into the enlargedlower portion of said sleeve when the sleeve valve member is in itslower normally closed position, the sleeve valve member also having aport in the side wall thereof near its lower end which registers withsaid enlarged lower. portion when the sleeve valve member is in saidlower position.

4. A distributing valve of the type having a valve casing with an inletchamber and separate outlet ports, and a distributing sleeve valvemember in the casing reciprocable therein for alternately directingwater through said separate outlet ports and having a uid pressureoperated head connected with the distributing sleeve valve characterizedby the distributing sleeve valve being provided with longitudinallyseparated inlet ports and longitudinally separated outlet ports, thevalve sleeve having partition means therein whereby the flow of waterfrom one inlet p ort may be directed separately from water passingthrough the other inlet port, said outlet ports in the valve casingbeing arranged for cooperation with the outlet ports of the distributingsleeve valve member.

5. A distributing valve of the type having a I valve casing with aninlet chamber and separate outlet ports, and'a distributing sleeve valvemember in the casing reciprocable therein for alternately directingwater through said separate outlet ports and having a fluid pressureoperated head connected with the distributing sleeve valve characterizedby having one set of inlet and outlet ports and a connecting passage atone side of the center thereof, and another set of inlet and outletports and a connecting passage at the other side of the longitudinalcenter thereof, the respective connecting passages being separated, theports in the casing being arranged for cooperation with said ports inthe sleeve valve member.

6. A valve of the class described, comprising a valve casing vhaving aninlet chamber and a sleeve portion, and having a reciprocable valvesleeve fitted in said sleeve portion, a'uid pressure opi Y erating headconnected with said sleeve and arranged to move the valve sleeve backand i'orth in the sleeve portion of the casing, said valve sleeve havihga plurality of narrow slit-like peplete covering or uncovering of saidports occurs I in a relatively short travel of the valve sleeve, two ofsaid slit-like ports being n ear the upper end of the sleeve andconstituting inlet ports and being on diametrically opposite sides ofthe sleeve, and partition means inside the sleeve for maintaining theflow of water which enters said opposed inlet ports separate within thevalve sleeve member.

THOMAS Il'. PAYNE.

